Removals
   * Remove the TLS 1.0, TLS 1.1 and DTLS 1.0 support by removing the following
     deprecated library constants: MBEDTLS_SSL_PROTO_TLS1,
     MBEDTLS_SSL_PROTO_TLS1_1, MBEDTLS_SSL_CBC_RECORD_SPLITTING,
     MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED,
     MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED, MBEDTLS_SSL_RECORD_CHECKING,
     MBEDTLS_SSL_FALLBACK_SCSV, MBEDTLS_SSL_FALLBACK_SCSV_VALUE,
     MBEDTLS_SSL_IS_FALLBACK, MBEDTLS_SSL_IS_NOT_FALLBACK, and functions:
     ssl_write_split(), mbedtls_ssl_conf_cbc_record_splitting(), tls1_prf(),
     ssl_update_checksum_md5sha1(), mbedtls_ssl_get_key_exchange_md_ssl_tls(),
     mbedtls_ssl_check_record(), ssl_check_record(), ssl_calc_verify_tls(),
     ssl_calc_finished_tls(), mbedtls_ssl_conf_fallback() as well as test
     function component_test_variable_ssl_in_out_buffer_len_record_splitting().
     Fixes #4286.